Child seat with two locking devices and child stroller

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By designing a secondary locking device and a stop structure on the child seat, the risk of the stroller rolling over when the child is lying down is eliminated, achieving higher safety and ease of operation.

CN222361001UActive Publication Date: 2025-01-17MESIKIAR GRP CO LTD

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Patent Information

Application Number: CN202320491327.8
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2023-03-14
Publication Date: 2025-01-17
Estimated Expiration: 2033-03-14

AI Technical Summary

Technical Problem

When children are riding in a lying position, the center of gravity of the seat is close to the outside, resulting in a risk of rolling over when reversing and rotating, which poses a safety hazard.

Method used

Design a child seat with a two-way locking device, including a stop structure between the backrest and the seat. There is an adjustment device and a reversing locking device between the backrest and the seat. When the backrest is unfolded to the maximum position, When in position, the stop structure is locked to prevent the seat from turning sideways when changing directions.

Benefits of technology

The locking stop structure ensures that the seat does not roll over when changing directions, which improves the safety of children while riding and is easy to operate.

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Abstract

The child seat with the two locking devices comprises a connecting base, a seat assembly is connected to the connecting base, the seat assembly comprises a seat part which is connected to the connecting base and can rotate and reverse relative to the connecting base, and the seat part is connected with a backrest part. An adjusting device capable of adjusting the unfolding gear of the backrest part relative to the seat part is arranged between the backrest part and the seat part, and a reversing locking device used for locking the relative positions of the seat assembly and the connecting seat is arranged between the seat assembly and the connecting seat. And a stop structure capable of preventing the seat part from rotating and reversing relative to the connecting seat even if the reversing locking device is unlocked when the backrest part is adjusted to the maximum unfolding gear relative to the seat part is also arranged between the backrest part and the seat part. The utility model further provides a baby stroller. The utility model aims to overcome the defects in the prior art and provide the child seat with the two locking devices and the child stroller, which can ensure that a child can sit on the child seat more safely.

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Description

[Technical field]

[0001] The utility model relates to a child seat and a child stroller with a two-way locking device. [Background technology]

[0002] Existing child strollers include a frame, a connecting seat, and a child seat arranged on the connecting seat. These child seats can adjust the unfolding positions of the backrest and the seat to allow the child to sit in different postures. When the backrest is adjusted to the maximum unfolding position relative to the seat, the child can sit in the child seat in a lying position. However, when the child sits in a lying position, the center of gravity of the entire seat will be close to the outside. At this time, if the seat needs to be rotated in a reverse direction, there is a risk that the entire child stroller will tip over when the child rotates with the seat. Fig. 9 As shown, there are safety risks.

[0003] The present invention is developed based on the above-mentioned shortcomings. [Contents of the utility model]

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a child seat with a two-way locking device which can make children sit more safely.

[0005] On the other hand, the utility model also provides a child stroller which is safer for children to ride on.

[0006] The utility model is realized by the following technical solutions:

[0007] The utility model first provides a child seat with a two-way locking device, comprising a connecting seat 1, a seat assembly 2 capable of rotating and reversing relative to the connecting seat 1 is connected to the connecting seat 1, the seat assembly 2 comprises a seat portion 21 connected to the connecting seat 1 and capable of rotating and reversing relative to the connecting seat 1, a backrest 22 capable of rotating relative to the seat portion 21 is connected to the seat portion 21, an adjustment device capable of adjusting the unfolding position of the backrest 22 relative to the seat portion 21 is provided between the backrest 22 and the seat portion 21, a reversing locking device for locking the relative positions of the two is provided between the seat assembly 2 and the connecting seat 1, and a stop structure 23 is also provided between the backrest 22 and the seat portion 21, which can prevent the seat portion 21 from rotating and reversing relative to the connecting seat 1 even if the reversing locking device is unlocked when the backrest 22 is adjusted to the maximum unfolding position relative to the seat portion 21.

[0008] The stop structure 23 includes a locking position 231 arranged on the connecting seat 1, and a locking member 232 is connected to the seat portion 21 and can slide relative to it to engage in or disengage from the locking position 231. A driving portion 233 is provided on the backrest portion 22 and can drive the locking member 232 to slide when the backrest portion 22 is rotated to the maximum deployment position. An elastic member 234 is provided between the locking member 232 and the seat portion 21 and can keep the locking member 232 in a disengaged state when the position of the backrest portion 22 is less than the maximum deployment position.

[0009] The locking member 232 includes a main body 2321 that can slide relative to the seat portion 21 . The main body 2321 is provided with an extension portion 2322 that extends into the connecting seat 1 . The extension portion 2322 follows the movement of the main body 2321 to lock in or out of the locking position 231 .

[0010] The seat portion 21 is further provided with a guide groove 211 through which the extension portion 2322 can pass and which can guide the locking member 232 to slide linearly relative to the seat portion 21 when the locking member 232 is pressed by the driving portion 233 .

[0011] The connecting seat 1 is provided with an annular groove 11 for the extension portion 2322 to slide when the seat portion 21 rotates relative to the connecting seat 1 . The locking position 231 is provided on the inner groove wall of the annular groove 11 and communicates with the annular groove 11 .

[0012] The driving portion 233 is a connecting piece extending downwardly from the backrest portion 22 .

[0013] The rear end of the locking member 232 is provided with an arc surface 2323 .

[0014] The seat assembly 2 also includes an armrest frame 25 rotatably connected to the backrest portion 22. A connecting member 24 is provided between the armrest frame 25 and the seat portion 21, which is rotatably connected to the two and can also cooperate with the seat portion 21, the armrest frame 25 and the backrest portion 22 to form a frame. The upper end of the connecting member 24 is rotatably connected to the armrest frame 25, and the lower end of the connecting member 24 is rotatably connected to the seat portion 21.

[0015] A second aspect of the utility model provides a child stroller, comprising a frame 3, to which the child seat with the double locking device as described above is connected.

[0016] The frame 3 includes a bottom support frame 31 that can be connected to the connecting seat 1, and a push rod assembly 32 is connected to the bottom support frame 31, and the backrest 22 can be unfolded to the maximum unfolding position only when it is away from the push rod assembly 32.

[0017] Compared with the prior art, the utility model has the following advantages: when the backrest of the child seat of the utility model is unfolded to the maximum unfolding gear relative to the seat part, the stop structure between the backrest and the seat part moves from the original unlocking state to the locking state and remains locked. At this time, even if the reversing locking device is unlocked, the seat assembly cannot rotate and reverse relative to the connecting seat, so the child seat will not tip over when reversing, and the child is safer when riding. When the seat assembly needs to rotate and reverse relative to the base, the backrest is lifted up relative to the seat part so that the unfolding gear between the backrest and the seat part is less than the maximum unfolding gear. At this time, the center of gravity of the child sitting on the seat assembly is close to the inside, and the child is safer when sitting on the seat assembly for reversing. Moreover, the locking state and the unlocking state of the stop structure are switched by rotating the backrest relative to the seat part, which is more convenient for adults to operate.

Brief Description of the Drawings

[0018] Figure 1 It is a three-dimensional diagram of a child seat with a two-way locking device of the utility model;

[0019] Figure 2 It is a cross-sectional view of the child seat with two locking devices of the utility model in the unfolded state;

[0020] Figure 3 It is one of the cross-sectional views of the child seat with two locking devices of the utility model when it is unfolded to the maximum unfolded state;

[0021] Figure 4 This is a second cross-sectional view of the child seat with two locking devices of the utility model unfolded to the maximum unfolded state;

[0022] Figure 5 It is an exploded view of the child seat with two locking devices of the utility model;

[0023] Figure 6 yes Figure 5 A magnified image of area A;

[0024] Figure 7 yes Figure 5 Enlarged view of area B;

[0025] Figure 8 It is a three-dimensional diagram of the utility model baby stroller;

[0026] Fig. 9 The utility model is a schematic diagram of a use state of a child stroller with a risk of tipping over. [Specific implementation method]

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] like Figures 1 to 7As shown, the first aspect of the utility model provides a child seat with a two-way locking device, including a connecting seat 1, to which a seat assembly 2 capable of rotating and reversing relative to the connecting seat 1 is connected, and the seat assembly 2 includes a seat portion 21 connected to the connecting seat 1 and capable of rotating and reversing relative to the connecting seat 1, and a backrest portion 22 capable of rotating relative to the seat portion 21 is connected, and an adjustment device capable of adjusting the deployment position of the backrest portion 22 relative to the seat portion 21 is provided between the backrest portion 22 and the seat portion 21, a reversing locking device for locking the relative positions of the two is provided between the seat assembly 2 and the connecting seat 1, and a stop structure 23 is also provided between the backrest portion 22 and the seat portion 21, which can prevent the seat portion 21 from rotating and reversing relative to the connecting seat 1 even if the reversing locking device is unlocked when the backrest portion 22 is adjusted to the maximum deployment position relative to the seat portion 21.

[0029] When the backrest 22 of the child seat of the utility model is unfolded to the maximum unfolding gear relative to the seat 21, the stop structure 23 between the backrest 22 and the seat 21 moves from the original unlocking state to the locking state and remains locked. At this time, even if the reversing locking device is unlocked, the seat assembly 2 cannot rotate and reverse relative to the connecting seat 1, so the child seat will not tip over when reversing, and the child is safer when riding. When the seat assembly 2 needs to rotate and reverse relative to the base 1, the backrest 22 is lifted up relative to the seat 21 so that the unfolding gear between the backrest 22 and the seat 21 is less than the maximum unfolding gear. At this time, the center of gravity of the child sitting on the seat assembly 2 is close to the inside, and the child is safer when sitting on the seat assembly 2 for reversing. The locking state and the unlocking state of the stop structure 23 are switched by the rotation of the backrest 22 relative to the seat 21, which is more convenient for adults to operate. The reversing locking device in the utility model is a common latch and lock hole. The gear adjustment structure between the backrest portion 22 and the seat portion 21 in the present invention is also an existing latch lock or spline lock.

[0030] like Figure 4As shown, the stop structure 23 includes a locking position 231 arranged on the connecting seat 1, a locking member 232 is connected to the seat portion 21 and can slide relative to it to engage in or disengage from the locking position 231, a driving portion 233 is provided on the backrest portion 22 and can drive the locking member 232 to slide when the backrest portion 22 is rotated to the maximum deployment position, and an elastic member 234 is provided between the locking member 232 and the seat portion 21 and can keep the locking member 232 in a disengaged state when the position of the backrest portion 22 is less than the maximum deployment position. When the backrest 22 rotates to the maximum unfolding gear relative to the seat 21, the driving part 233 on the backrest 22 presses the locking part 232 to slide during the following rotation. The locking part 232 compresses the elastic part 234 during the sliding and is locked into the locking position 231 on the connecting seat 1. At this time, the seat 21 and the connecting seat 1 are locked by the cooperation of the locking position 231 and the locking part 232. Even if the reversing locking device is unlocked, the seat assembly 2 cannot rotate and reverse relative to the connecting seat 1, ensuring safety. When the backrest 22 rotates relative to the seat 21 and is less than the maximum unfolding gear, the driving part 233 on the backrest 22 rotates in the reverse direction with the backrest 22 and releases the locking part 232. The locking part 232 slides in the reverse direction and disengages from the locking position 231 during the resetting process of the elastic part 234. At this time, after the reversing locking device is unlocked, the seat assembly 2 can rotate and reverse relative to the connecting seat 1.

[0031] like Figure 5 As shown, the locking member 232 includes a body 2321 that can slide relative to the seat portion 21, and the body 2321 is provided with an extension portion 2322 extending into the connection seat 1, and the extension portion 2322 follows the movement of the body 2321 to lock into or out of the locking position 231. The extension portion 2322 is a convex column extending into the connection seat 1.

[0032] like Figure 6 As shown, the seat portion 21 is further provided with a guide slot 211 through which the extension portion 2322 can pass and which can guide the locking member 232 to slide linearly relative to the seat portion 21 when the locking member 232 is pressed by the driving portion 233. The locking member 232 slides linearly relative to the seat portion 21 through the cooperation between the extension portion 2322 and the guide slot 211.

[0033] like Figure 5 and Figure 7 As shown, the connecting seat 1 is provided with an annular groove 11 for the extension part 2322 to slide when the seat part 21 rotates relative to the connecting seat 1, and the locking position 231 is provided on the inner groove wall of the annular groove 11 and communicates with the annular groove 11. The annular groove 11 allows the extension part 2322 to slide inside when the seat part 21 rotates relative to the connecting seat 1, and the extension part 2322 abuts against the outer side wall of the annular groove 11 when the backrest part 22 is not in the maximum deployment gear.

[0034] like Figure 2 and Figure 3 As shown, the driving part 233 is a connecting piece extending below the backrest part 22. The connecting piece is arranged to be larger at the top and smaller at the bottom, and the top of the connecting piece can abut against the driving part 233 to drive the locking member 232 to slide relative to the seat part 21.

[0035] like Figure 2 , Figure 3 and Figure 5 As shown, the rear end of the locking member 232 is provided with an arc surface 2323. The arc surface 2323 can make the driving part 233 move more smoothly when abutting against the driving part 233.

[0036] like Figure 8 As shown, the seat assembly 2 also includes an armrest frame 23 rotatably connected to the backrest 22, and a connecting member 24 is provided between the armrest frame 25 and the seat portion 21, which is rotatably connected to the two and can also cooperate with the seat portion 21, the armrest frame 25 and the backrest 22 to form a surrounding frame. The upper end of the connecting member 24 is rotatably connected to the armrest frame 25, and the lower end of the connecting member 24 is rotatably connected to the seat portion 21. The seat assembly 2 can be folded and occupies less space. The seat portion 21, the armrest frame 25, the backrest 22 and the connecting member 24 cooperate with each other to form a surrounding frame, which is safer for children to sit on, and even when the backrest 22 is adjusted to the maximum unfolding gear relative to the seat portion 21, the armrest frame 25 and the connecting member 24 can still rotate with the backrest 22 relative to the seat portion 21, ensuring the safety of children when they are lying down.

[0037] like Figure 8 As shown, the second aspect of the utility model further provides a child stroller, comprising a frame 3, to which the child seat with the two-way locking device as described above is connected.

[0038] The frame 3 includes a bottom support frame 31 that can be connected to the seat 1, and a push rod assembly 32 is connected to the bottom support frame 31, and the backrest 22 can be unfolded to the maximum unfolding position only when it is away from the push rod assembly 32.

Claims

1. A child seat with a two-way locking device, characterized in that: The invention comprises a connecting seat (1), the connecting seat (1) being connected to a seat assembly (2) capable of rotating and reversing relative to the connecting seat, the seat assembly (2) comprising a seat portion (21) connected to the connecting seat (1) and capable of rotating and reversing relative to the connecting seat, the seat portion (21) being connected to a backrest portion (22) capable of rotating relative to the seat portion (21), an adjusting device capable of adjusting the unfolding position of the backrest portion (22) relative to the seat portion (21) being provided between the backrest portion (22) and the seat portion (21), a reversing locking device for locking the relative position of the two being provided between the seat assembly (2) and the connecting seat (1), and a stop structure (23) being provided between the backrest portion (22) and the seat portion (21) for preventing the seat portion (21) from rotating and reversing relative to the connecting seat (1) even if the reversing locking device is unlocked when the backrest portion (22) is adjusted to the maximum unfolding position relative to the seat portion (21).

2. The child seat with a two-way locking device according to claim 1, characterized in that: The stop structure (23) comprises a locking position (231) arranged on the connecting seat (1); a locking member (232) is connected to the seat portion (21) and can slide relative to the locking member and engage in or disengage from the locking position (231); a driving member (233) is provided on the backrest portion (22) and can drive the locking member (232) to slide when the backrest portion (22) rotates to a maximum deployment position; and an elastic member (234) is provided between the locking member (232) and the seat portion (21) and can keep the locking member (232) in a disengaged state when the position of the backrest portion (22) is less than the maximum deployment position.

3. The child seat with a two-way locking device according to claim 2, characterized in that: The locking member (232) comprises a main body (2321) which can slide relative to the seat portion (21); an extension portion (2322) extending into the connecting seat (1) is provided on the main body (2321); the extension portion (2322) follows the movement of the main body (2321) and is engaged with or disengaged from the locking position (231).

4. The child seat with a two-way locking device according to claim 3, characterized in that: The seat portion (21) is also provided with a guide groove (211) capable of allowing the extension portion (2322) to pass therethrough and capable of guiding the locking member (232) to slide linearly relative to the seat portion (21) when the locking member (232) is pressed by the driving portion (233).

5. The child seat with a two-way locking device according to claim 3, characterized in that: The connecting seat (1) is provided with an annular groove (11) for the extension portion (2322) to slide when the seat portion (21) rotates relative to the connecting seat (1), and the locking position (231) is provided on the inner groove wall of the annular groove (11) and is connected to the annular groove (11).

6. The child seat with a two-way locking device according to claim 2, characterized in that: The driving part (233) is a connecting piece extending downwardly from the backrest part (22).

7. The child seat with a two-way locking device according to claim 2, characterized in that: The rear end of the locking member (232) is provided with an arc surface (2323).

8. The child seat with a two-way locking device according to claim 1, characterized in that: The seat assembly (2) further comprises an armrest frame (25) rotatably connected to the backrest portion (22); a connecting member (24) is provided between the armrest frame (25) and the seat portion (21) and is rotatably connected to the two and can cooperate with the seat portion (21), the armrest frame (25) and the backrest portion (22) to form a surrounding frame; the upper end of the connecting member (24) is rotatably connected to the armrest frame (25), and the lower end of the connecting member (24) is rotatably connected to the seat portion (21).

9. A baby stroller, characterized in that: The invention comprises a frame (3), to which a child seat with a two-way locking device as claimed in any one of claims 1 to 8 is connected.

10. The baby stroller according to claim 9, characterized in that: The frame (3) comprises a bottom support frame (31) capable of being connected to the connecting seat (1), a push rod assembly (32) being connected to the bottom support frame (31), and the backrest portion (22) can be unfolded to a maximum unfolding position only when it is away from one side of the push rod assembly (32).